G

Gourav • 2.17K Points
Master

Q. Which of the following is equal to cos²θ − sin²θ?

  • (A) cos 2θ
  • (B) sin 2θ
  • (C) tan 2θ
  • (D) sec 2θ

Explanation by: Gourav

cos 2θ = cos²θ − sin²θ.

You must be Logged in to update hint/solution

Discusssion

Login to discuss.

Be the first to start discuss.